Part of a larger substation expansion project across California’s Central Valley; which helped to enable PG&E to continue to provide safe, reliable, affordable and clean energy to their customers.
The facility expansion at the Mendota Substation required the installation of new telecommunication towers. Due to the highly compressible subsurface soils at the site; pile foundations were required for support of the towers. Multiple deep foundation systems were considered for use at the site.
Safety, as well as, mitigation of noise and vibration during pile installation were the chief concerns on the project. Working at the substation also required the ability to install piles with limited access for equipment.
To meet these requirements, M-Piles were chosen for support of the tower foundations. M-Piles were designed to gain capacity in friction, and were installed to a depth of 75’-0” through clay and alluvial soils.